Sponge



FIG. 1 is a perspective view of a sponge showing the present invention;

FIG. 2 is a top plan view thereof, with the bottom plan view beingidentical;

FIG. 3 is a right elevational view thereof, with the left elevationalview being identical;

FIG. 4 is a front elevational view thereof; and,

FIG. 5 is a rear elevational view thereof.

CLAIM The ornamental design for a sponge, as shown and described. 